This page hosts a formal specification of .dat file format of Faster Than Light (FTL) using Kaitai Struct. This specification can be automatically translated into a variety of programming languages to get a parsing library.
All parsing code for C# generated by Kaitai Struct depends on the C# runtime library. You have to install it before you can parse data.
The C# runtime library is available in the NuGet Gallery. Installation instructions can also be found there.
Parse a local file and get structure in memory:
var data = FtlDat.FromFile("path/to/local/file.dat");
Or parse structure from a byte array:
byte[] someArray = new byte[] { ... };
var data = new FtlDat(new KaitaiStream(someArray));
After that, one can get various attributes from the structure by accessing properties like:
data.NumFiles // => Number of files in the archive
// This is a generated file! Please edit source .ksy file and use kaitai-struct-compiler to rebuild
using System.Collections.Generic;
namespace Kaitai
{
public partial class FtlDat : KaitaiStruct
{
public static FtlDat FromFile(string fileName)
{
return new FtlDat(new KaitaiStream(fileName));
}
public FtlDat(KaitaiStream p__io, KaitaiStruct p__parent = null, FtlDat p__root = null) : base(p__io)
{
m_parent = p__parent;
m_root = p__root ?? this;
_read();
}
private void _read()
{
_numFiles = m_io.ReadU4le();
_files = new List<File>();
for (var i = 0; i < NumFiles; i++)
{
_files.Add(new File(m_io, this, m_root));
}
}
public partial class File : KaitaiStruct
{
public static File FromFile(string fileName)
{
return new File(new KaitaiStream(fileName));
}
public File(KaitaiStream p__io, FtlDat p__parent = null, FtlDat p__root = null) : base(p__io)
{
m_parent = p__parent;
m_root = p__root;
f_meta = false;
_read();
}
private void _read()
{
_ofsMeta = m_io.ReadU4le();
}
private bool f_meta;
private Meta _meta;
public Meta Meta
{
get
{
if (f_meta)
return _meta;
if (OfsMeta != 0) {
long _pos = m_io.Pos;
m_io.Seek(OfsMeta);
_meta = new Meta(m_io, this, m_root);
m_io.Seek(_pos);
f_meta = true;
}
return _meta;
}
}
private uint _ofsMeta;
private FtlDat m_root;
private FtlDat m_parent;
public uint OfsMeta { get { return _ofsMeta; } }
public FtlDat M_Root { get { return m_root; } }
public FtlDat M_Parent { get { return m_parent; } }
}
public partial class Meta : KaitaiStruct
{
public static Meta FromFile(string fileName)
{
return new Meta(new KaitaiStream(fileName));
}
public Meta(KaitaiStream p__io, FtlDat.File p__parent = null, FtlDat p__root = null) : base(p__io)
{
m_parent = p__parent;
m_root = p__root;
_read();
}
private void _read()
{
_lenFile = m_io.ReadU4le();
_lenFilename = m_io.ReadU4le();
_filename = System.Text.Encoding.GetEncoding("UTF-8").GetString(m_io.ReadBytes(LenFilename));
_body = m_io.ReadBytes(LenFile);
}
private uint _lenFile;
private uint _lenFilename;
private string _filename;
private byte[] _body;
private FtlDat m_root;
private FtlDat.File m_parent;
public uint LenFile { get { return _lenFile; } }
public uint LenFilename { get { return _lenFilename; } }
public string Filename { get { return _filename; } }
public byte[] Body { get { return _body; } }
public FtlDat M_Root { get { return m_root; } }
public FtlDat.File M_Parent { get { return m_parent; } }
}
private uint _numFiles;
private List<File> _files;
private FtlDat m_root;
private KaitaiStruct m_parent;
/// <summary>
/// Number of files in the archive
/// </summary>
public uint NumFiles { get { return _numFiles; } }
public List<File> Files { get { return _files; } }
public FtlDat M_Root { get { return m_root; } }
public KaitaiStruct M_Parent { get { return m_parent; } }
}
}